<?php

/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * Smarty truncate modifier plugin
 *
 * Type: modifier<br>
 * Name: truncate<br>
 * Purpose: Truncate a string to a certain length if necessary,
 * optionally splitting in the middle of a word, and
 * appending the $etc string or inserting $etc into the middle.
 * @link http://smarty.php.net/manual/en/lang...r.truncate.php
 * truncate (Smarty online manual)
 * @author Monte Ohrt <monte at ohrt dot com>
 * @param string
 * @param integer
 * @param string
 * @param boolean
 * @param boolean
 * @return string
 */
function smarty_modifier_truncatecn($string, $length = 80, $etc = '...', $code = 'UTF-8')

{

    if ($length == 0)

        return '';

    if ($code == 'UTF-8') {

        $pa = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/";

    }

    else {

    $pa = "/[\x01-\x7f]|[\xa1-\xff][\xa1-\xff]/";

    }

    preg_match_all($pa, $string, $t_string);

    if (count($t_string[0]) > $length)

        return join('', array_slice($t_string[0], 0, $length)) . $etc;

    return join('', array_slice($t_string[0], 0, $length));

}
?>